iwlagn: change default ACK/CTS MASK setting for WiFi/BT coex

Change the default BT_KILL_ACK_MASK and BT_KILL_CTS_MASK for BT coex
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-commands.h

@@ -2450,8 +2450,8 @@ struct iwl_bt_cmd {
 
 #define IWLAGN_BT3_T7_DEFAULT		1
 
-#define IWLAGN_BT_KILL_ACK_MASK_DEFAULT	cpu_to_le32(0xffffffff)
-#define IWLAGN_BT_KILL_CTS_MASK_DEFAULT	cpu_to_le32(0xffffffff)
+#define IWLAGN_BT_KILL_ACK_MASK_DEFAULT	cpu_to_le32(0xffff0000)
+#define IWLAGN_BT_KILL_CTS_MASK_DEFAULT	cpu_to_le32(0xffff0000)
 
 #define IWLAGN_BT3_PRIO_SAMPLE_DEFAULT	2